[refactor] Remove WebWidget::applyReplacementRange

third_party/WebKit/public/web/WebInputMethodController.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebInputMethodController_h
 #define WebInputMethodController_h
 
 #include "../platform/WebTextInputInfo.h"
 #include "WebCompositionUnderline.h"
 #include "WebTextInputType.h"
 #include "WebWidget.h"
 
 namespace blink {
 
+class WebRange;
 class WebString;
 template <typename T>
 class WebVector;
 
 class WebInputMethodController {
  public:
   enum ConfirmCompositionBehavior {
     DoNotKeepSelection,
     KeepSelection,
   };
 
   virtual ~WebInputMethodController() {}
-  // Called to inform the WebInputMethodController of a new composition text.
-  // If selectionStart and selectionEnd has the same value, then it indicates
-  // the input caret position. If the text is empty, then the existing
-  // composition text will be canceled.
-  // Returns true if the composition text was set successfully.
+
+  // Called to inform the WebInputMethodController of a new composition text. If
+  // selectionStart and selectionEnd has the same value, then it indicates the
+  // input caret position. If the text is empty, then the existing composition
+  // text will be canceled. |replacementRange| (when not null) is the range in
+  // current text which should be replaced by |text|. Returns true if the
+  // composition text was set successfully.
   virtual bool setComposition(
       const WebString& text,
       const WebVector<WebCompositionUnderline>& underlines,
+      const WebRange& replacementRange,
       int selectionStart,
       int selectionEnd) = 0;
 
-  // Called to inform the controller that deleting the ongoing composition if
-  // any, inserting the specified text, and moving the caret according to
-  // relativeCaretPosition.
+  // Called to inform the controller to delete the ongoing composition if any,
+  // insert |text|, and move the caret according to |relativeCaretPosition|.
+  // |replacementRange| (when not null) is the range in current text which
+  // should be replaced by |text|.
   virtual bool commitText(const WebString& text,
                           const WebVector<WebCompositionUnderline>& underlines,
+                          const WebRange& replacementRange,
                           int relativeCaretPosition) = 0;
 
   // Called to inform the controller to confirm an ongoing composition.
   virtual bool finishComposingText(
       ConfirmCompositionBehavior selectionBehavior) = 0;
 
   // Returns information about the current text input of this controller. Note
   // that this query can be expensive for long fields, as it returns the
   // plain-text representation of the current editable element. Consider using
   // the lighter-weight textInputType() when appropriate.
   virtual WebTextInputInfo textInputInfo() { return WebTextInputInfo(); }
 
   // Returns the type of current text input of this controller.
   virtual WebTextInputType textInputType() { return WebTextInputTypeNone; }
 };
 
 }  // namespace blink
 #endif